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Touch screen panel type liquid crystal display

Inactive Publication Date: 2009-06-11
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention provides a capacitive touch screen panel type liquid crystal display that may be thin and may have improved light transmittance and visibility.

Problems solved by technology

However, since the resistive touch screen panel has a dual structure including a film and a glass, the resistive touch screen panel may have low light transmittance and a narrow effective screen area as compared with other touch screen panels.
In addition, since the resistive touch screen panel may cause a short by closely adhering the film to the glass, the resistive touch screen panel may have a narrow operational temperature range and inferior aging characteristics.
In addition, the resistive touch screen panel may be thick, may have decreased light transmittance, and may have reduced product yield due to difficulty in controlling alien substances.

Method used

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  • Touch screen panel type liquid crystal display
  • Touch screen panel type liquid crystal display
  • Touch screen panel type liquid crystal display

Examples

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Embodiment Construction

[0028]The invention is described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure is thorough, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like reference numerals in the drawings denote like elements.

[0029]It will be understood that when an element or layer is referred to as being “on,”“connected to,” or “coupled to” another element or layer, it can be directly on, directly connected to, or directly coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being “directly on,”“directly connected to,” or “direc...

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PUM

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Abstract

A liquid crystal display includes an upper substrate, a lower substrate, and a liquid crystal layer interposed between the upper substrate and the lower substrate. The upper substrate includes a first insulating substrate, a transparent conductive layer on the first insulating substrate, and a first polarizer on the transparent conductive layer. The lower substrate includes a second insulating substrate, a second polarizer on the second insulating substrate, and a thin film transistor layer. The second insulating substrate is between the thin film transistor layer and the second polarizer. The transparent conductive layer allows an electric field to be formed on the first polarizer, so that a position signal input unit, which contacts the first polarizer, is capacitively coupled with the transparent conductive layer.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority from and the benefit of Korean Patent Application No. 10-2007-0126732, filed on Dec. 7, 2007, which is hereby incorporated by reference for all purposes as if fully set forth herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a liquid crystal display. More particularly, the present invention relates to a capacitive touch screen panel type liquid crystal display that may have a thin panel and improved light transmittance and visibility.[0004]2. Discussion of the Background[0005]Currently, with the development of information technologies, the demand for a high-performance display, which displays and transmits various types of information including images, graphics, and characters, has increased. To satisfy this demand, the display industry has rapidly grown.[0006]A liquid crystal display may have low power consumption and may be light-weight and slim as com...

Claims

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Application Information

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IPC IPC(8): G06F3/044G09G3/36
CPCG06F3/0443G02F1/13338G02F1/133514G06F3/0354G06F3/0412G06F3/0416H01B5/14
Inventor CHO, JONG-WHAN
Owner SAMSUNG DISPLAY CO LTD
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